🔍 Key Concepts

• Flash point ranges used in 46 CFR to distinguish flammable vs. combustible liquids • How 46 CFR defines combustible liquid grades (Grades B, C, D, E) by flash point brackets • The difference between very low, moderate, and higher flash points and how that affects the grade letter

💭 Think About

• Ask yourself: Is 175°F a relatively low, medium, or high flash point compared to typical flammable liquids like gasoline or paint thinner? • Which grade letters in 46 CFR are associated with the highest flash point ranges among combustible liquids? • Think about how the grades progress: do the letters usually go from more dangerous (lower flash point) to less dangerous (higher flash point), or the opposite?

✅ Before You Answer

• Look up in 46 CFR the exact flash point range for each grade (B, C, D, E) and see where 175°F (79.4°C) fits. • Verify which grades are classified as flammable vs. combustible and make sure you are only choosing from those listed as combustible liquids. • Confirm that the grade you pick has a lower limit below 175°F and an upper limit above 175°F, so 175°F clearly falls within that grade’s defined range.